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(11)

EP 2 810 509 A1

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(43) Date of publication: 10.12.2014 Bulletin 2014/50 (21) Application number: 12867258.1 (22) Date of filing: 31.01.2012

(51) International Patent Classification (IPC):  H04W 72/04(2009.01) H04W 4/20(2009.01) H04B 7/005(2006.01) (86) International application number: PCT/IB2012/050455 (87) International publication number: WO 2013/114157 (08.08.2013 Gazette 2013/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Nokia Corporation 02610 Espoo (FI)	(72) Inventors: DALSGAARD, Lars FI-90230 Oulu (FI) KOSKINEN, Jussi-Pekka FI-90630 Oulu (FI) MALKAMÄKI, Esa Mikael FI-02130 Espoo (FI) KESKITALO, Ilkka Antero FI-90240 Oulu (FI) KOSKELA, Jarkko Tuomo FI-90510 Oulu (FI) (74) Representative: Nokia Corporation  Intellectual Property Department Karakaari 7 02610 Espoo 02610 Espoo (FI)